CYS-CYSAB accreditation symbol, ISO/IEC 17025:2017
No. of Accred.: L152
TESTING
Customer: Cybenetics LTD
Syrou 6, Latsia, 2231, Nicosia Cyprus

MWE Gold 750 V4

Report Number: 26PS3436A
Customer ID: 27
Lab ID: CM75003436

Test Results Report

Section A: Testing Equipment

Electronic Loads Chroma 63601-5 x2
Chroma 63600-2
Chroma 63640-80-80 x10
Chroma 63610-80-20
AC Sources Chroma 6530, APM SP300VAC4000W-P, GW Instek ASR-3500
Power Analyzers Rohde & Schwarz HMC8015 & NPA701
Oscilloscopes Picoscope 4444, Siglent SDS2104X PLUS
Sound Analyzer Bruel & Kjaer 2270 G4
Microphone Bruel & Kjaer Type 4955-A
Temperature Logger Picoscope TC-08
Tachometer UNI-T UT372
Multimeters Keysight 34465A
EMI Analyzer TekBox TBMR-110M-EU
Isolation Transformer 4kVA
UPS FSP Champ Tower 3kVA, CyberPower OLS3000E 3kVA
Testing Methodology Cybenetics PSU Test Protocol

Section B: ETA

Voltage115V230V
Efficiency (>1450 Load Combinations)88.796%91.296%
Efficiency Graphs
Average PF (>1450 Load Combinations)0.9870.936
12V Step7.00W
5V/3.3V Step2.50W
Standby Power Consumption0.0595W0.1502W
ErP Lot 3/6 Ready✓
(EU) No 617/2013 Compliance✓
Average Efficiency VSB80.062%79.105%
Conducted Emissions EN 55032 & CISPR 32 (48W)Passed

Section C: LAMBDA

Voltage115V230V
Noise Rating (>1450 Load Combinations)25.96dBA25.96dBA
Noise Graphs

Section D: ATX

Efficiency With 10W (≤500W) or 2% (>500W) Load64.830%
Hold Up Time23.20ms
Power OK19.00ms
Power OK to DC Loss4.20ms
Test\Rail+12V5V3.3V5VSB
100ms11.9874.9573.2855.049
10ms11.7484.9523.2634.995
1ms11.6504.9533.2564.967
0.1ms11.4824.9473.2454.931

Section E: Information about DUT

Product Identification Details
BrandCooler Master
ModelMWE Gold 750 V4
OEM/ODMGOSPOWER
Serial Number-
Product Specifications
Manufacturer
Rated Voltage (Vrms)100-240
Rated Current (Arms)6-10
Rated Frequency (Hz)50-60
Rated Power (W)750
Operating Temperature (Continuous Full Load) (°C)0 - 40
TypeATX12V
Cable DesignFully Modular
Warranty10 years
Cybenetics
Dimensions (W x H x D)150 x 86 x 140mm
Weight1.32 kg (2.91 lb)
Cooling120mm Fluid Dynamic Bearing Fan (HA1225H12F-Z)
Semi-Passive Operation✓
Cybenetics Testing Information
Lab IDCM75003436
Date of receiptSep 10, 2026
Testing DateOct 7, 2026
Report Issued DateOct 8, 2026
Engineer NameIoannis Kalyviotis
Authorized By the Laboratory Technical ManagerAristeidis Bitziopoulos
Signature

Cables And Connectors(Non-accredited measurements)

Modular Cables
Description Cable Count Connector Count (Total) Gauge Cable Type
ATX connector 24 pin (600mm) 1 1 18AWG Tinned Copper
4+4 pin EPS12V (700mm) 1 1 18AWG Tinned Copper
8 pin EPS12V (700mm) 1 1 18AWG Tinned Copper
6+2 pin PCIe (600mm+125mm) 2 4 16-18AWG Tinned Copper
12+4 pin PCIe (600mm) (600W) 1 1 16-24AWG Tinned Copper
SATA (400mm+110mm+110mm) 2 6 18AWG Tinned Copper
4-pin Molex (400mm+120mm+120mm) 1 3 18AWG Tinned Copper
AC Power Cord (1350mm) - C13 coupler 1 1 3G 0.75mm² -

Protection Features(Non-accredited measurements)

Over Power Protection✓
Over Current (+12V) Protection✓
Over Temperature Protection✓
Short Circuit Protection✓
Surge Protection✓
Inrush Current Protection✓
Fan Failure Protection✗

Parts Description

General Data
Manufacturer (OEM)

GOSPOWER

PCB Type Double-Sided
Primary Side
Transient Filter 4x Y caps, 3x X caps, 2x CM chokes, 1x MOV
Inrush Protection 1x NTC 5D-20 (5 Ohm @ 25°C) & Relay
Bridge Rectifier 2x GBU1008 (800V, 10A @ 100°C)
APFC MOSFETs 1x CR Micro CRJQ80N65F (650V, 33.7A @ 100°C, Rds(on): 0.090Ohm)
APFC Boost Diode 1x Zhixin Microelectronics SDC10065NAS (650V, 10A @ 150°C)
Bulk Cap(s) 1x Toshin Kogyo (450V, 390uF, 2000h @ 105°C, LGW )
Main Switchers 2x CR Micro CRJF99N65G2BF (650V, 20A @ 100°C, Rds(on): 0.099Ohm)

APFC+LLC Combo Controller

MPS HR1280

Topology Primary side: APFC, Half-Bridge & LLC Resonant Converter
Secondary side: [12V] Synchronous Rectification & [Minor Rails] DC-DC converters
Secondary Side
+12V MOSFETs 4x 014N04B
5V & 3.3V DC-DC Converters: 4x CRSM035N03L6Z (30V, 54A @ 100°C, Rds(on): 3.5mOhm)
PWM Controller(s): 1x APW7391
Filtering Capacitors Electrolytic:
2x CapXon (2000~5000h@ 105°C, KF )
1x CapXon (3000~7000h @ 105°C, GH )
1x Elite (2000h @ 105°C, EL )
Polymer:
17x CapXon
19x Nichicon
Supervisor IC INFSitronix IN1T709-SDG
Fan Model Hong Hua HA1225H12F-Z (120mm, 12V, 0.58A, Fluid Dynamic Bearing Fan )
5VSB Circuit
Rectifier Yangjie SS10U45
Standby PWM Controller INFSitronix IN2P380C

Photos

Top side
Top side
Power specifications label
Power specifications label
Fan
Fan
PSU Internals
PSU Internals

Section F: Uncertainty

Efficiency Uncertainty Estimation

F.1 General Statement

Measurement uncertainty associated with the reported results was evaluated and estimated in accordance with JCGM 100:2008 (Guide to the Expression of Uncertainty in Measurement — GUM) and ISO/IEC 17025:2017, Clauses 7.6 and 7.2.

The uncertainty budget accounts for all significant identified contributors arising from the measurement process, instrumentation, test conditions, and operator interaction.

The reported expanded uncertainty U is obtained by multiplying the combined standard uncertainty uc by a coverage factor k = 2, corresponding to a confidence level of approximately 95 %, assuming a normal probability distribution.

Unless otherwise stated, the reported uncertainty applies only to the specific measurements performed and does not include long-term drift, aging effects, or future environmental changes.

F.2 Expanded Measurement Uncertainty by Measurement Type

Measurement Expanded Uncertainty U (k=2, norm)
Efficiency ±0.43%
Timings ±2.64ms
Power Excursions (Transient Response) ±0.18V
Conducted EMI Emissions (150 kHz – 30 MHz) ±2.35 dB
Noise Output ±1.23 dB